Computer Science – Sound
Scientific paper
Sep 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jgr....82.3547p&link_type=abstract
Journal of Geophysical Research, vol. 82, Sept. 1, 1977, p. 3547-3556.
Computer Science
Sound
1
Auroral Spectroscopy, F Region, Ionospheric Sounding, Nocturnal Variations, Particle Flux Density, Polar Substorms, Satellite-Borne Photography, Spectral Bands
Scientific paper
A constant local midnight flight by the AFGL airborne ionospheric observatory from Goose Bay, Labrador to Fairbanks, Alaska, stayed under the midnight sector of the auroral oval for nine hours on December 9, 1971. These airborne observations were supplemented by auroral photographs from the DMSP satellite and by particle flux measurements from the Isis 2 satellite. A band of enhanced red (6300 A) emission was identified; this red band, extending over 2-10 deg in latitude, is oval aligned and contains both discrete and continuous auroras. Large-scale (10 deg in latitude) meridional variation of the red band occurs during substorms. It is found that soft plasma electrons give rise to the red band, and that it is associated with an F-layer irregularity zone and the auroral E layer.
Büchau Jurgen
Pike Charles P.
Whalen James A.
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